baber/WOPTO huggingface dataset:
Patent GB-1228721-A (GB)
IPC: H01J1/00
Filed: 1968-05-16
Abstract: 1,228,721. Automatic exchange systems; multiplex pulse signalling. WESTERN ELECTRIC CO. Inc. 16 May, 1968 [22 May, 1967], No. 23218/68. Headings H4K and H4L. In a T.D.M. communication system in which a plurality of stations, interconnectable in pairs over a common T.D.M. highway, are scanned in sequence, stations transmitting video or other broadband signals are sampled during every scanning cycle while stations transmitting on narrower bandwidths are sampled only during selected scanning cycles. The scanner described employs a scanning rate of 72 kHz and 0.5  microsecond "time slot". Those "time slots" which are not required for transmission of a sample are contracted to near non-existence (20 nanoseconds) by rapid advance of the scanner, which includes a call store, the locations of which are successively accessed during successive "time slots" to read out the addresses of transmission gates to be opened during those "time slots". The addresses read out of locations allotted to 18 kHz video transmissions are (in addition to being used to open the transmission gates) immediately returned to the same locations for reuse during the next scanning cycle, while addresses read out of locations allotted to narrower band transmissions, e.g. 2 kHz speech transmissions are returned to those locations via a delay of an appropriate number of cycles, e.g. 9 cycles, and transmission only takes place once for each group of cycles. The signals are differentiated before being sampled for transmission and are integrated at the receiving stations to reconstitute the original signals. In one embodiment the differentiated signals in addition to being transmitted are applied to a feed-back loop in the transmitting station line circuit, in which loop they are integrated and compared in analogue fashion with a subsequently arriving signal. The comparator prevents the opening of the transmission gate and causes the scanner to rapidly advance if no significant change is detected thus further reducing the time required for each transmission in a manner similar to that used in a "TASI" system. By varying the acceptance limits of this comparator more calls can be dealt with at a reduced grade of transmission during conditions of overload.
Patent GB-1231625-A (GB)
IPC: H01J29/87
Filed: 1968-07-05
Abstract: 1,231,625. Cathode ray tubes. INTERNATIONAL STANDARD ELECTRIC CORP. 5 July, 1968 [6 July, 1967], No. 32206/68. Addition to 1,216,666. Heading H1D. In a method of producing an implosion protection device over the junction between the faceplate 7 and bulb 1 of a C.R.T. a slowsetting adhesive 5 is applied over all the junction except for a portion 4 to which is applied a quick-setting adhesive, and the length of this portion 4 is sufficient to retain in position an end of a metallic ribbon applied to the portion and wound under mechanically induced tension only over both adhesives to form a superimposed multilayer winding, the tension in the ribbon being maintained until at least two layers are welded together to form an implosion protection band having substantially the same tension as the ribbon during winding. The slowsetting adhesive may be based on epoxy resin or polyurethane and the quick-setting adhesive may be of the impact type based on caoutchouc. In a modification a length of foil with. quicksetting adhesive on each side is initially applied to the portion 4, which may be situated in the centre of a small side of a rectangular faceplate 7.
Patent GB-1232167-A (GB)
IPC: H04B3/44
Filed: 1969-07-16
Abstract: 1,232,167. Locating faulty repeaters. SIEMENS A.G. 16 July, 1969 [17 July, 1968], No. 35825/69. Heading H4R. In an arrangement for feeding power to repeaters over the line and in which the " go " and " return " amplifiers at each repeater are connected in parallel, in respect of the power supply, to reduce the voltage required to be supplied, a relay is provided with its coil R connected in the power return path and its contacts arranged to connect the go and return paths together in the event of a break in the transmission path beyond the repeater. The break contact r is connected between the tapping points of a series arrangement of diodes D1 and D2 or D3 and D4 connected respectively across the parallel connected amplifier power circuits, and the relay coil R. The arrangement allows the amplifier power supply to be derived alternately from the supply and return conductors for successive repeaters along the line, while retaining the unambiguous fault position indication of the relay operation, which is lost if the relay contacts are not connected via diodes D1to D4, as shown. The system allows identical circuits to be used at all repeaters irrespective of the direction of power flow provided the current flow direction in the loop is maintained. In an alternative arrangement, Fig. 3 (not shown), the resistor RQ is removed and replaced by two resistors of equal value to RQ placed one in series with each of diodes D3 and D4, an arrangement which provides a greater voltage drop across the parallel branch including diodes D3 and D4 to operate relay R, which in the embodiment of Fig. 2 has to be operated by the threshold voltage of diodes D3 and D4.
Patent GB-1233819-A (GB)
IPC: A47C17/00
Filed: 1969-09-17
Abstract: 1,233,819. Chairs, beds, &c. M. HELLER. 17 Sept., 1969, No. 45753/69. Heading A4H. A chair, Fig. 2, bed (Fig. 4), &c., has side members b formed by slicing off sections of an elongated body a, Fig. 1 (or Fig. 3). Body a comprises curved or bent rigid sheet material of laminated wood, metal, glass fibre or plastics. Side members b are interconnected by rigid cross rails c.
Patent GB-1234664-A (GB)
IPC: B65D75/26
Filed: 1968-06-07
Abstract: 1,234,664. Sterilizable packages. E. S. & A. ROBINSON (HOLDINGS) Ltd. 5 June, 1969 [7 June, 1968], No. 27256/68. Heading B8C. In a sterilizable package, a front panel 1 and a laminated back panel 2 having its innermost fibrous layer cut or perforated at 7, are heatsealed together at their edges with an article between them. The cut 7 enables one to peel the front panel from the back panel without the innermost layer of the back panel being carried away with the front panel. The cut 7 may extend to the longitudinal seals 3. The back panel may comprise two layers of paper laminated together by polyethylene. The front panel may be polyethylene, a plastics coated paper polyethylene coated film or a plastics film laminate.
Patent GB-1250675-A (GB)
IPC: B65G49/02
Filed: 1969-07-15
Abstract: 1,250,675. Degreasing apparatus. UDDEHOLMS A. B. July 15, 1969 [July 17, 1968], No.35598/69. Heading C7E. Workpieces to be degreased are located in recesses 25 on the periphery of a hollow closed horizontally rotating cylinder 16 which feeds the workpieces into and out of the vapour cleaning zone 3. The liquid degreasing agent in the container is vapourized at 7 and the vapour passes into zone 3 via 12. The vapour is condensed by cooling pipes 10 and flows into zone 2 via 11. The level of zone 2 is maintained by overflow pipe 13. The workpieces are charged and discharged into and out of recesses 25 by a hydraulic or pneumatic cylinder on to conveyor 28. The workpieces are cleaned by the vapour in zone 3 and also by the liquid solvent e.g. trichloro or tetrachloroethylene in zone 2.
Patent GB-1257711-A (GB)
IPC: A61K31/365
Filed: 1969-03-03
Abstract: 1,257,711. Composition comprising plicatic acid lactone. H. H. ZINSSER. 3 March, 1969 [1 March, 1968], No. 11133/69. Heading A5B. A tablet for oral administration to a mammal for the prevention and treatment of oxalate urolithiasis comprises plicatic acid lactone of the general formula: and a nontoxic diluent.
Patent GB-1258490-A (GB)
IPC: B28C9/00
Filed: 1969-11-03
Abstract: 1,258,490. Unit for preparing and delivering concrete. T. SCHMIDT and G. E. HUMMELSHOJ. 3 Nov., 1969 [5 Nov., 1968], No. 53774/ 69. Heading B1C. A unit for preparing and delivering con- Crete comprises a frame 7 housing a concrete mixer 6, apparatus 4, 18 for the supply of proportioned quantities of aggregate, cement, and > water to the mixer, a travelling winch 9 movable along an overhead rail 8 adjustably mounted on frame 7, a bucket 10 suspended from the winch and movable to a position to receive concrete from the mixer, guide rails 11, 12 for guiding the bucket into position, and means for connecting rail 8 to a rail system 17 leading to a location where the concrete is required for storage or use.
Patent GB-1264126-A (GB)
IPC: F16K31/04
Filed: 1968-05-31
Abstract: 1,264,126. Screw-and-nut mechanism; valves. ENGLISH ELECTRIC CO. Ltd. 28 May, 1969 [31 May, 1968], No. 26225/68. Headings F2Q and F2V. A valve actuator comprises a hollow shaft 2 to which a nut 4 is coupled by the engagement of teeth 40, on the end of shaft 2, with teeth 38 on one end of the nut 4. As shown in Fig. 1, the nut 4 lies within the bore of shaft 2, but the nut may be reversed so that it lies outside the shaft 2. A hollow extension 26 is screwed on to the end of shaft 2 and is retained by a grub screw 30. The nut 4 is retained by a ring 42 screwed within extension 26, the ring 42 being frictionally locked in position by a screw 44 traversing a slot 46. The shaft 2 is driven from a motor through a worm 6 and worm-wheel 8 which is clutched to the shaft 2 by a dog-clutch member 14 utilizing dog teeth 10, 12. Alternatively the shaft may be driven manually through dog teeth 18. Instead of being in the form of a nut, the output member may alternatively be in the form of a sleeve having an internal keyway for engagement with a keyed spindle for controlling a valve.
Patent GB-1288377-A (GB)
IPC: C07C255/53
Filed: 1968-10-30
Abstract: 1288377 Poly-p-cyanophenoxy alkanes MINNESOTA 3M LABORATORIES Ltd 6 Oct 1969 [30 Oct 1968] 51480/68 Heading C2C Novel compounds of Formula I in which R<SP>1</SP> is a hydrogen atom, a C 1-6  alkyl group or a p-cyanophenoxy group of Formula II and in which all the ns are the same and each n is 0 or an integer from 1 to 6, provided that n is not 0 when R<SP>1</SP> is a p-cyanophenoxy group, and in which the aromatic nucleus in each p-cyanophenoxy group may bear one or more C 1-6  alkyl, C 1-6  alkoxy, halogen or CF 3  substituents, provided that all the p-cyanophenoxy groups are identical, are prepared by refluxing an alkali metal derivative of p-hydroxybenzonitrile, the aromatic nucleus of which may bear one or more C 1-6  alkyl, C 1-6  alkoxy, halogen or CF 3  substituents, with a polyhaloalkane of Formula III in which R<SP>2</SP> is a hydrogen atom, a C 1-6  alkyl group or X and each X is a bromine or iodine atom, in a solvent, there being at least one mole of alkali metal derivative present for each mole of halogen present in the polyhaloalkane, and recovering the resultant compound of Formula I.
Patent GB-1295969-A (GB)
IPC: C08L27/06
Filed: 1970-04-01
Abstract: 1295969 Plasticizing vinyl chloride resins UNION CARBIDE CORP 1 April 1970 [1 April 1969] 15395/70 Heading C3P Compositions comprise a vinyl chloride resin and as plasticizer a lactone/alkylene oxide copolymer having a reduced viscosity value of at least 0À03 measured at a concentration of 0À2 gm. in 100 ml. of benzene at 30‹ C. and characterized by recurring units of Formulµ (I): -O(CR 2 ) x (O) z (CR 2 ) y CO-, where R is hydrogen, alkyl, halo or alkoxy; x is 1 to 4; y is 1 to 4; z is 0 or 1; x+y+z is at least 4 and not greater than 7; and the total number of R substituents other than hydrogen does not exceed 3; and (II) -OCHR<SP>1</SP>CHR<SP>1</SP>- where R<SP>1</SP> is hydrogen, alkyl, cycloalkyl, aryl or chloroalkyl or the two R<SP>1</SP> substituents are joined to form with the ethylene moiety a C 4-8  saturated cycloaliphatic ring. The end groups of the plasticizer are preferably esterified. The vinyl chloride resin may be a homopolymer or copolymer with vinyl acetate, acrylonitrile, acrylonitrile and vinylidene chloride, vinyl propionate, methacrylonitrile, methyl vinyl ketone or acrylonitrile and methacrylonitrile. Many suitable lactones and alkylene oxides are specified and examples describe the preparation of copolymers of (1 to 3, 5 and 6) epsilon-caprolactone and propylene oxide, (4) epsilon-caprolactone and ethylene oxide, (7) epsilon-caprolactone and 1,2-butylene oxide, (8) dimethyl epsilon-caprolactones and ethylene oxide, (9) epsilon-methyl epsilon caprolactone and propylene oxide and (10) delta-valerolactone and 2,3-butylene oxide; and the incorporation thereof in (1 to 9) polyvinyl chloride and (10) a vinyl chloride/acrylonitrile copolymer. The alkylene oxide /lactone copolymers are prepared using solutions of potassium hydroxide in (1 and 2) 2-ethylhexanol, (3) glycerol and (4) dipropylene glycol as initiators, the products being terminated with (1, 3 and 4) isobutyrate and (2) acetate groups; and using (5 and 6) phosphorus pentafluoride as catalyst.
Patent GB-1302172-A (GB)
IPC: B64C3/40
Filed: 1968-03-29
Abstract: 1302172 Variable sweep aircraft wings BRITISH AIRCRAFT CORPORATION Ltd 18 Feb 1969 [29 March 1968] 15243/68 Heading B7G [Also in Division E2] A wing pivot for an aircraft having variable sweep-back wings comprises a hollow pin 18 extending through a tube 15 joining apertured bosses 13, 14 forming the root 12 of a wing 3. A pin 19 locks the pin 18 to the tubes 15. A part-spherical bearing ring 25 coated on both outer and inner surfaces with P.T.F.E. is secured to each end of the pin 18 by an annular wedge-section clamping ring 26. Each ring 25 co-operates with a two-part bearing member 23a, 23b, the bearing members being mounted in apertured lugs 10, 11 of the aircraft fuselage 1. Vertical and shear loads from the bosses 13, 14 are taken through bearing pads 28, 29 secured to horizontal surfaces of an arcuate bracket 16 secured to the fuselage 1. Should a part-spherical bearing seize the inner cylindrical surface of the ring 25 rotates relatively to the ring 26 to permit pivoting of the wing and provide a fail-safe feature.
Patent GB-1303581-A (GB)
IPC: H02G15/04
Filed: 1971-06-09
Abstract: 1303581 Sealing cable joints J T THOMPSON and G W GILLEMOT 9 June 1971 19715/71 Heading H2E An encapsulating kit for enclosing previously made splice connections of conductor ends comprises an open 15 ended wrapper 11, a porous open-celled liner 12, a filling of insulating permanently gel-like compound 13 and a means for closing the open end about the conductors. The kit may be prefilled with the mass which is retained therein before use by a tongue 17 and groove 18 fastening the opposite walls 20, 21 of the bag wrapper 11 or it may be added prior to the insertion of the spliced conductor ends, which are covered with a heat-insulating sleeve 26. The wrapper 11 is of polyethylene or P.V.C. sheet, the liner of thermoplastic sponge-like material and the compound 13 of 85% (by weight) petrolatum and 15% low density polyethylene. The wrapper opening is closed by interengaging the tongue and groove and gathering with a wire tie (29).
Patent GB-1312580-A (GB)
Title: Electrical heating
IPC: H05B3/00
Filed: 1971-10-19
Abstract: 1312580 Clips ELECTROTHERMAL ENG Ltd 19 Oct 1971 48644/71 Heading E2B [Also in Division H5] Surface heating elements 1, 2 comprising rows of blocks 4, 5 of insulating heat resistant material pivoted together and having electric heating material (not shown) passing therethrough, are connected together by metal strips 6 retained releasably in sheet metal clips 7 secured to the smaller outer blocks 5 the strip passing over the opposite side of the element from the heated surface 3. The metal strip is held in the slat 11 of the longer arm 9 of the clip, Fig. 2, by the tags 12 which may be bent parallel to the length of the strip 6 and clear of it. The arm 8 is passed under the block 5 so that the portion 10 lies underneath the block and the tags 13 are bent inwardly of the clip to secure it to the block. The thickness of the metal of the clip determines the clearance between the block 5 and the surface to be heated. Wider clips nearer the centre of the side of the element may be used in addition or as an alternative to those shown there being several apertures 11 in each such clip.
Patent GB-1328290-A (GB)
Title: Alarm operating circuits
IPC: G08B25/14
Filed: 1971-03-23
Abstract: 1328290 Fire alarms CHUBB FIRE SECU - RITY Ltd 16 March 1972 [23 March 1971] 7597/71 Heading G4N An alarm circuit comprises a plurality of condition-responsive detectors connected to a common line 10 feeding sensing means (such as a thyristor SCR and relay BR) arranged to operate an alarm 16 in response to the signal on line 10. An acceptance device 24 is arranged to nullify the alarm 16 despite continunce of the signal on line 10 and to render the sensing means (SCR) responsive to further signals on line 10. As described, the signals on line 10 may emanate from heat or smoke detectors (not shown) and energize relay AR so as to operate bells 16 and lamp 14. The signal current in transformer 12 turns on the SCR which energizes relay BR, operation of an acceptance button 24, 28 energizes relay CR which inhibits bells 16 and releases relay BR, holding CR energized. A further change in current in line 10 turns on SCR, energizing BR which releases CR and sounds bells 16. A Zener diode 30 ensures adequate voltage across line 10.
Patent GB-1328637-A (GB)
Title: Device for clamping attachment to a body
IPC: B23Q1/28
Filed: 1971-04-19
Abstract: 1328637 Tool Clamping EDWARD WILLIAMS HOLDINGS 19 April 1971 [7 April 1970] 16395/70 Headings B3B and B3T A device for clamping attachment to a dovetail recess in a body comprises a member having a longitudinally slit dovetail portion adapted to be engaged in the dovetail recess in the body, and two wedge members movable relatively to each other in the slit so as to force the two portions of the dovetail apart and into clamping engagement with the walls of the recess. The invention is described in relation to the clamping of a lathe tool holder 13 on a cross slide 10 of a lathe, tapered bushes 26, 27 adapted to be drawn together by a bolt 28 being provided in a slot 18, 20 of a dovetail 15 formed on the toolholder 13. The slot in the dovetail may be to one side of the centre plane of the dovetail.
Patent GB-1330532-A (GB)
Title: Jewellery display pads
IPC: A47F7/02
Filed: 1970-11-30
Abstract: 1330532 Display stands HARRISON & JEFFERYS Ltd 30 Nov 1970 [28 April 1970] 20261/70 Heading A4T A jewellery display pad comprises a replaceable pad proper 14 detachably secured to a backing member 10, and one or more replaceable border members 15, 16 adjacent the pad proper. The pad proper may be retained on the backing member by angle irons 13. Alternatively, the bordering members may form a frame around the edge of the pad proper. The members may be a friction fit, a snap fit, an interlocking fit, or be attached by screws.
Patent GB-1333712-A (GB)
Title: Fastening members
IPC: A47G1/10
Filed: 1970-11-30
Abstract: 1333712 Joints; picture frames R A DAVIES 30 Nov 1970 [10 Dec 1969] 60305/69 Headings A4H and A4X] [Also in Division E2] Four mouldings 10 of a picture frame are joined to form a rectangular frame by four corner fasteners each comprising an L-shaped, as shown, or a right triangular shaped, Fig. 2 ( not shown) plate, said plate including pegs or pins 14 depending substantially at a right angle that are pressed into holes 11 in the mouldings 10. The pegs may be serrated. The edges of the plate adjacent the right angles may include depending flanges. The axes of the holes or pegs may be slightly inclined. The fasteners may comprise plastics, and the mouldings may be glued at their corners.
Patent GB-1334131-A (GB)
Title: Divider circuits
IPC: H03K3/281
Filed: 1971-05-17
Abstract: 1334131 Transistor pulse circuits SMITHS INDUSTRIES Ltd 12 May 1972 [17 May 1971] 15345/71 Heading H3T [Also in Division H1] A divide-by-two circuit Fig. 3 contains three switching circuits A, B, C each comprising for example a regeneratively coupled complementary pair of transistors (Fig. 2, not shown). The first two circuits A, B are respectively switched to their second states by the start and the finish of a first input pulse at I/P, and the third C is switched to its second state by the start of a second input pulse and causes A, B to be reset to their first states, the finish of the second pulse resetting C. The rising edge of the input pulse is applied to terminal A25 to turn A on; this causes output O/P to fall (Fig. 4, not shown) but not far enough for C to be turned on by the potential at C. Terminal A25 is now held a little above +V R  (2 volts) so that R28 holds B25 high relative to B20 when I/P falls at the end of the first pulse, and B turns on. The rising edge of the second input pulse carries terminals B20, B25, B30 all upwards, and consequently C30 rises above C15 so that C turns on. The low voltage now across C causes A30 and B30 to fall so that A and B go off. The falling edge of the second input signal turns off C, and thus one full rising edge is generated at O/P for every second input.
Patent GB-1343893-A (GB)
IPC: C02F9/00
Filed: 1971-02-05
Abstract: 1343893 Filtering and sterilising STAGE STIRLING Ltd 5 Feb 1971 3999/71 Heading BID A combined filter and sterilising device for removing solid particles from a fluid and sterilising the fluid comprises a housing 2 having an inlet 3 in its side and an outlet 7 in its base, the outlet leading to a downstream pump. Mounted in the housing is an inward flow filter cartridge 1 comprising a plastics foam sleeve 6 around a perforated tube 4, the tube 4 being in communication with outlet 7. Mounted on top of the filter cartridge is a sterilising device 8 comprising a cylindrical casing 9 with a removable top 10. The casing is formed with a water inlet opening 11 in its side and carries an internal sleeve 12 which has a corresponding opening 13 in its side and which is turnable so as to enable the degree of register of the holes (and hence the inlet flow) to be adjusted. The casing contains a chlorine tablet 14. Most fluid flows from inlet 3 to outlet 7 through the filter sleeve 6, some fluid, however, by-passes the filter and flows via openings 11, 13 and over to chlorine tablet 14 to reach the outlet. An opening 15 is formed in the top of casing 10 so that if waves break over the top of the device then they may enter the steriliser by this opening and thus increase the fluid throughput. The use of such a device in a swimming pool filtration and sterilization unit is described and claimed in Specification 1,343,894.